How Active View Works
Active View is Google's JavaScript-based viewability measurement solution, MRC-accredited since 2013, integrated natively into Google Ads, Display & Video 360 (DV360), and Google Ad Manager (GAM). It reports % viewable impressions, viewable impressions count, measurable impressions (the subset that could be tracked by the JS tag), and Average Viewable Time. Active View data is available at the campaign, ad group, placement, and ad level in Google Ads, making it actionable without requiring a third-party verification tag. For YouTube video campaigns, Active View measures the 50%/2-second threshold and also reports Audible + Visible at Completion (AVOC) rate.
Why Active View Matters for B2B Marketing
For B2B advertisers running GDN campaigns, Active View data is the most accessible starting point for viewability optimization since it requires no additional tag implementation or vendor cost. Sorting placement reports by Active View % Viewable immediately identifies the lowest-quality inventory in an account. Placements below 40% viewability should be excluded unless there is a specific direct response reason to retain them. For YouTube ads, AVOC rate, which measures whether the video was both seen and heard at completion, is a stronger brand recall predictor than standard view-through rates.
Active View: Best Practices & Strategic Application
Best practices for leveraging Active View include: enabling vCPM bidding (Target Viewable CPM) in Display campaigns to instruct Google's algorithm to prioritize viewable impressions, reviewing Active View data monthly at the placement level and building exclusion lists for consistently low-viewability domains, using Average Viewable Time as a proxy for ad engagement quality (longer viewable time = more exposure for brand messaging), and cross-referencing Active View % with click-through rate to identify placements with high viewability but poor engagement (potential bot traffic indicator).
Agency Perspective: Active View in Practice
MV3 Marketing includes Active View % Viewable as a standard column in all GDN placement reports. We use it as the primary quality filter in monthly optimization reviews, systematically excluding placements below 60% viewability and reallocating that budget to placements achieving 75%+, typically improving effective viewable CPM by 25-40% without increasing total spend.
